Well, yes that was part of the reason we wanted to run the fridge/freezer from 12 volt rather than propane was while driving, since we invested in a DCDC charger as well as the solar (and use the generator as the last resort as well as to run the microwave and other AC items.)
So apparently though the consensus is that 12 volt absorption fridges just aren't great for running long amounts of time and keeping up with the cooler temps.
Apparently I guess it won't pay then to order this fan kit if and instead will have to continue switching back and forth to propane I guess when the temps start showing they are getting warmer again in the fridge.
(At least until we invest in an inverter… so next question I guess would be, what size and type of inverter should we look into? Is A 3,000 pure sign wave inverter overkill for 12v setup?)
Thanks for the feedback!